The Effect of Workpiece Geometry on Heat Transfer in Induction Heating
Abstract
Induction heating is a modern and rapid heating method that enables the heating of conductive materials through high-frequency current using a non-contact and directed electromagnetic field, where the heat is delivered directly to the workpiece to be heated. One of the important factors affecting energy transfer in induction heating systems is the geometry of the workpiece used as the heater. In this study, the effect of three different internal insert geometries, while maintaining the same external geometry, on total heat transfer during induction heating of a fluid flowing inside a pipe was investigated. The experimental study was carried out using a 25-kW professional induction machine operating with a 3-phase, 380 V power supply in a medium-scale industrial facility. Convective heat transfer values were calculated based on experimental data. Results showed that the insert with a helical internal geometry exhibited the highest convective heat transfer.
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